Impact of Protocols and Network Configuration on Node-Level Availability in Sensor Networks(Network, <Special Section>Ubiquitous Networks)
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概要
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We investigate the effects of the performance of sensor networks on network availability and in turn evaluate the impact of protocols and network configuration on these effects. The typical wireless sensor network of the future consists of a large number of micro-sized sensors that are equipped with batteries of limited capacity. In such a network, energy consumption is one of the most important issues. Several representative protocols that are applied in ring and linear network configurations are analyzed, and explicit formulae for network availability are derived for each of them. Numerical values derived by using these formulae yielded the surprising result that backup routes do not always improve network availability. This is because the loads imposed by the backup routes on network segments that do not include dead sensor nodes reduce sensor-node lifetimes in these segments.
- 社団法人電子情報通信学会の論文
- 2005-03-01
著者
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TSUCHIYA Toshiaki
NTT Service Integration Laboratories
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SAITO Hiroshi
NTT Network Innovation Laboratories, NTT Corporation
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Tsuchiya Toshiaki
Ntt Service Integration Laboratories Ntt Corporation
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